Metamaterial Based Energy Harvester

The paper presents an approach of energy harvesting from Radio frequency waves. We make use of metamaterials for this energy harvesting technique. Metamaterials are engineered structures that are not readily available in nature. They usually gain their properties from structure rather than their composition. RF waves of GSM frequency bands are captured using metamaterial structure and then it is converted to DC voltage using Schottky diode. Spiral resonator, which is a metamaterial structure, is used as the energy capturing interface. The proposed method is simple, user friendly and efficient.